Surge protector green LED surge protection light off and diagnostic LED information.

[Don2222]

Hello
This TrippLite Isobar Isoblok428 premium surge suppressor with diagnostic LEDs was installed in 2021 on a Whitfield Optima 3 and worked well for approx 5 years. Not only does it have a green LED light to show it has power and the protection circuit light shows it is working but had a fault light that lights up red if the AC outlet phase is reversed or if there is no ground. When either one of these AC outlet wiring errors occur, the fault LED lights up red and the pellet stove control panel can still be damaged!
In this case, when the stove had its annual fall maintenance the protection light was out. This town has had many issues in the past with power outages but not much in the past few years. However power fluctuations could still be there and not noticed. Power fluctuations can still damage very sensotive pellet stove control panels over time which certainly could have happened in this case! After the stove servicing and cleaning it fired up properly.
Here is the delails of what happened inside this surge protector. Does it look like the control panel was saved in this case?
When the protection light on a surge protector (such as an Isobar or similar strip) goes out, it means the internal surge-suppression components—specifically the Metal Oxide Varistors (MOVs)—have worn out or sacrificed themselves after absorbing a power surge or voltage spike.
What This Means

• Surge protection is gone: The device may still pass electricity and work like a basic multi-outlet extension cord, but it no longer protects your plugged-in electronics (like computers, TVs, or audio gear) from future surges.
• It cannot be reset: There is no manual reset button or fix to restore the internal MOVs once they have failed.

Pic 1 - Highly recommended Isobar Surge protector new in box
Pic 2 - cost of Isoblok428
Pic 3 - protection MOV failed (green LED light off)
Pic 4 - New Isoblok428 and surge protection restored
Pic 5 - Control Panel worth approx $600 saved and working.
Pic 6 - Lennox Whitfield Optima 3 with modern Satin Black high temperature satin black stove bright spray paint with VHT very high temperature flat aluminum spray paint over gold bars, fired up and is working. This stove is the same as the Profile 30 except the pellets drop directly into the ash pan. See

The Whitfield Profile Pellet Stove

The Whitfield Profile pellet stove offers large hopper capacity, long burn times, automatic ignition and thermostat adaptability. Good view of the fire in its bay window

www.pelletstovefires.com

Pic 7. - Isoblok diagnostic LED instruction’s information.
Pic 8 - Fault light on
Pic 9 - electrical tester available at Home Depot, shows type of fault
Pic 10 - shows black hot wire and white neutral wire in AC outlet on the wall is revered. This can damage a pellet stove control over time.
Note: The fault light will also light up red if the AC outlet has no ground. Then the surge can not be safely discharged to ground. The best solution here is to install a new 3 prong outlet wired directly (home run) to the electrical panel.