Enviro M55 help

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flynfrfun

Minister of Fire
Oct 25, 2010
703
Bonney Lake, WA
Could someone with the new version blower tell me if their stove ramps the blowers to heat level 3 when you shut it off? Mine used to do this. If the stove was at heat level 1 and I turned it off, it would ramp the blowers up to about heat level 3 to cool the stove down quicker.

It has stopped doing this. Now, whatever speed the blower is on when I shut it off, it stays at that speed. I seem to remember it changing this behavior about the same time I installed the new turbo blower. I'm trying to figure out if I have a control board issue, or if this is normal with the new blower.

Also, even with a clean stove (totally, including the exhaust pipe and ash traps), I can barely get the magnahelic to register over .17 even with the damper all the way open. I'm starting to wonder if something happened to the control board and it's not putting the correct voltages to the exhaust motor?

Flynfrfun
 
Anyone? I'm hoping someone will just turn their stove off and let me know if theirs goes to about heat level 3 blower or if it stays on whatever heat level setting they had it at.
 
Actually Smokey, my stove used to always go to heat level 3's blower settings when I shut it down. Even if the stove was on heat level 1 prior to the shut down. Now, if the stove is at heat level 1 when I shut it down, it stays at the heat level 1's blower setting instead of going to heat level 3's blower setting. I'm hoping someone else with an M55 will confirm if this is normal or not. I'm wondering if something went haywire in my control panel as I want to get it replaced while it's under warranty.
 
Cletus,
Do you have the updated convection blower? Thanks for your reply.
 
flynfrfun said:
Actually Smokey, my stove used to always go to heat level 3's blower settings when I shut it down. Even if the stove was on heat level 1 prior to the shut down. Now, if the stove is at heat level 1 when I shut it down, it stays at the heat level 1's blower setting instead of going to heat level 3's blower setting. I'm hoping someone else with an M55 will confirm if this is normal or not. I'm wondering if something went haywire in my control panel as I want to get it replaced while it's under warranty.

If you hit Enviro or your dealer with incorrect voltages at the motor they have to say something that makes sense right?
 
For Cletus......if you do have the new blower, can you share your thoughts on how you like it. Is it noisy?????? Desperate people want to know? Thanks, Bill
 
flynfrfun --- When I shut my stove down, the fans definitely increase in speed. I don't know that it is level 3, but it must be close, considering the amount of noise they make. This goes for about 30 minutes then everything shuts down completely.

When you start the stove back up, do the fans go to heat level 3-4 as normal??
 
bostonfan49 said:
For Cletus......if you do have the new blower, can you share your thoughts on how you like it. Is it noisy?????? Desperate pe
ople want to know? Thanks, Bill

My stove came with the updated fan so I do not know what the difference is. I can tell you my stove is louder than the one's I heard on the showroom floor's at the three different dealers I went to in my area. I have no problem beliving that the dealer stove's have the quieter fans in their stove to help them sell them.
 
Not sure what fan I have but it does ramp up for about 1/2 hour when I shut off power after running.

Good luck,
---Nailer---
 
Just got my stove Saturday and was told it was the newest serial #s so I am assuming I have the updated blower. How do you tell?
 
SmokeyTheBear said:
flynfrfun said:
Actually Smokey, my stove used to always go to heat level 3's blower settings when I shut it down. Even if the stove was on heat level 1 prior to the shut down. Now, if the stove is at heat level 1 when I shut it down, it stays at the heat level 1's blower setting instead of going to heat level 3's blower setting. I'm hoping someone else with an M55 will confirm if this is normal or not. I'm wondering if something went haywire in my control panel as I want to get it replaced while it's under warranty.

If you hit Enviro or your dealer with incorrect voltages at the motor they have to say something that makes sense right?

I follow you now. That was my next step to finding out if the exhaust blower is getting the correct voltages. Actually, I've got this handy post from Frosty that should tell me right away if I've got the correct voltages. https://www.hearth.com/econtent/index.php/forums/viewthread/87697/

At least now I know something has happened to my controller because mine doesn't ramp up the blower when I shut it down. It does operate normally in every other aspect.
 
BradH70 said:
flynfrfun --- When I shut my stove down, the fans definitely increase in speed. I don't know that it is level 3, but it must be close, considering the amount of noise they make. This goes for about 30 minutes then everything shuts down completely.

When you start the stove back up, do the fans go to heat level 3-4 as normal??

Yes, when it starts back up, the fans go to their proper heat level setting. Thanks a million guys, this really helps. Obviously something has happened to my controller. I'll be calling my dealer in the next few days. Prior to that, I've got to hook up my voltmeter to the exhaust motor and see what kind of voltages it's receiving. It's been bugging me that my mag readings are so low even with the damper wide open. Maybe the two problems are both related to a bad controller.
 
That could absolutely be it. You may not have noticed the exhaust fan not turning faster because the new convection blower is louder and audibly masking the problem. If the exhaust fan isn't spinning fast enough, you will never get the vacuum pressure in the burn chamber that is needed for a good flame. When you got to heat level 3, 4 or 5 is the flame lazy or quick?
 
BradH70 said:
That could absolutely be it. You may not have noticed the exhaust fan not turning faster because the new convection blower is louder and audibly masking the problem. If the exhaust fan isn't spinning fast enough, you will never get the vacuum pressure in the burn chamber that is needed for a good flame. When you got to heat level 3, 4 or 5 is the flame lazy or quick?

It's not lazy at those settings, but it never gets "brisk" when I open the damper all the way either. I ran it at heat level 5 a while back for 1hr, then checked the mag (with the damper all the way open)...it was only about .15. My venting is by the book...18" horizontal thru the wall, vertical 3', 90 and termination. Of course 4" pipe. When I did my full cleaning of the venting, I did pick up a couple of hundredths on the mag, but it still wasn't over .18. It seemed like the mag stayed pretty much the same at both heat level 5 and also at heat level 3 when I dropped it back down. This makes me wonder if the controller is not ramping up the voltage when I go above heat level 3.

I guess it could be the exhaust motor too. I'll check the voltage first as I believe that should at least tell me if the controller is working correct.
 
flyn, Frosty 's numbers should be somewhat close. But keep in mind the input voltage could effect the output. If your input is higher, You could see higher outputs or same if your input is lower.
 
jtakeman said:
flyn, Frosty 's numbers should be somewhat close. But keep in mind the input voltage could effect the output. If your input is higher, You could see higher outputs or same if your input is lower.

THX J, I understand. As long as my #'s track similar to his. I'm off to pull the insert out and hook up some wire jumpers to the exhaust motor. Can't wait to see if there is a problem there or not.
 
SmokeyTheBear said:
Ah, at last the use of the meter.

Ha,ha Smokey...OK, OK, I may be a little hard headed. :red:

Anyways here are the results:

MY STOVE
Combustion Fan (Trim=3):
Setting 5 - 104v
Setting 4 - 96.5v
Setting 3 - 90.5v
Setting 2 - 83.5v
Setting 1 - 82.0v

FROSTY'S STOVE
Combustion fan (Trim=3):
Setting 5 - 116.6 v
Setting 4 - 111.2 v
Setting 3 - 105.7 v
Setting 2 - 99.4 v
Setting 1 - 89.0 v

Hopefully, I hooked the multi-meter up correct. My motor has 3 wires (Black, Red, Blue). I hooked the leads to the Black and the Red. From the looks of things, this is why my mag readings are so low. My blower is not getting enough voltage.
 
A little voltage light you seem to be.


But the level 1 voltage is above the stated low value to replace the controller.

I see that stove has a capacitor to play with on the combustion blower side.

Time to talk to your dealer.
 
SmokeyTheBear said:
A little voltage light you seem to be.


But the level 1 voltage is above the stated low value to replace the controller.

I see that stove has a capacitor to play with on the combustion blower side.

Time to talk to your dealer.

Yes, I will call him tomorrow. What do you mean by "the level 1 voltage is above the stated low value to replace the controller"? Are you reading a mfr spec book of some sort? Yes, there is a capacitor in line with the combustion blower.
 
OK, here are the readings at all trim settings. It appears that the trim at heat level 5 is not having any affect from trim 2 thru 5. Also, obviously the voltages are pretty low across the board.

Trim1
5 - 101.5v
4 - 92.2v
3 - 84.1v
2 - 83.0v
1 - 68.0v

Trim2
5 - 103.0v
4 - 94.8v
3 - 87.5v
2 - 79.5v
1 - 76.2v

Trim3
5 - 103.1v
4 - 95.8v
3 - 89.5v
2 - 82.2v
1 - 79.8v

Trim4
5 - 103.5v
4 - 97.8v
3 - 92.3v
2 - 85.5v
1 - 83.5v

Trim5
5 - 103.5v
4 - 99.0v
3 - 93.5v
2 - 87.5v
1 - 78.5v
 
Flyn, Whats your start voltage?

If your in a GFI outlet, Try a standard outlet. Or is it in a UPS? Try without. I not sure a UPS would have an effect, Just a wild guess!
 
flynfrfun said:
SmokeyTheBear said:
A little voltage light you seem to be.


But the level 1 voltage is above the stated low value to replace the controller.

I see that stove has a capacitor to play with on the combustion blower side.

Time to talk to your dealer.

Yes, I will call him tomorrow. What do you mean by "the level 1 voltage is above the stated low value to replace the controller"? Are you reading a mfr spec book of some sort? Yes, there is a capacitor in line with the combustion blower.

I'm reading the M55 domestic technical manual that I downloaded from the enviro website which says to replace the controller if the voltage on heat range one is less than 75 vac.

The book also says that setting 5 should be greater or equal to 115 vac if line voltage is greater than 115 vac
 
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