Hello
Just working on a stove that may have been headed to the scrap heap because the AC plug was cut off! LOL
See
https://www.hearth.com/talk/threads/what-is-wrong-with-this-pellet-stove-see-video.168941/
Has Anyone fixed their AC cord?
One item I thought could be better is the strain relief! The special oblong hole cut in the sheet metal and squeezing the blunt end into trying to bite into the wires is a very old design!
In fact it seems to be made for only 18 or probably 20 Guage. I tried to use it for 16 Guage but it bit into the wires so much it caused leakage from either the black Hot or white ground greater than 5 milliamperes and tripped the GFCI outlet on the wall in the house! Leakage at 75 milliamperes or greater to the ground wire can make the metal body of the stove hot and be a shock haszard!
I found a newer designed strain relief at an electrical store that is also made for heavier Guage wiring like 16 Guage.
This new design has a bunch of plastic fingers that clamp down on the jacket of the AC cord and applies even pressure all around the wire! This just makes much more sense and requires approximately 5/8” Mounting hole that can easily be made with a step drill bit from Harbor Freight. In fact the oblong hole for the original strain relief can easily be drilled larger using the step drill bit.
Pic 1 - Cut AC cord
A new plug could be attached but a new cord with a new molded plug is safer and wil not fall apart.
Pic 2 - new Strain Relief
Pic 3 - Drilling out larger hole
Pic 4 - new strain relief installed with new 16 Guage 3 prong AC cord.
Pic 5 - New insulated spade clips crimped on to new AC cord and plugged into pellet stove wiring harnes. Note the old ground wire came out of stove between the ventilation slats in the back panel and attached to a screw that held the back panel on. This makes it very cumbersome to remove the panel and service the pellet stove. In this case a new round clip crimped onto the green ground wire is now grounded to the body of the stove with a stainless steel self tapping screw seperate from the back panel,
Pic 6 - Old strain relief. See tab that bites wire!
Also some stoves have the AC cord strain relief part of the back panel and can easily fall out. Drilling a hole in the back of the stove body and using the new strain relief can also make stove servicing easier.
Just working on a stove that may have been headed to the scrap heap because the AC plug was cut off! LOL
See
https://www.hearth.com/talk/threads/what-is-wrong-with-this-pellet-stove-see-video.168941/
Has Anyone fixed their AC cord?
One item I thought could be better is the strain relief! The special oblong hole cut in the sheet metal and squeezing the blunt end into trying to bite into the wires is a very old design!
In fact it seems to be made for only 18 or probably 20 Guage. I tried to use it for 16 Guage but it bit into the wires so much it caused leakage from either the black Hot or white ground greater than 5 milliamperes and tripped the GFCI outlet on the wall in the house! Leakage at 75 milliamperes or greater to the ground wire can make the metal body of the stove hot and be a shock haszard!
I found a newer designed strain relief at an electrical store that is also made for heavier Guage wiring like 16 Guage.
This new design has a bunch of plastic fingers that clamp down on the jacket of the AC cord and applies even pressure all around the wire! This just makes much more sense and requires approximately 5/8” Mounting hole that can easily be made with a step drill bit from Harbor Freight. In fact the oblong hole for the original strain relief can easily be drilled larger using the step drill bit.Pic 1 - Cut AC cord
A new plug could be attached but a new cord with a new molded plug is safer and wil not fall apart.
Pic 2 - new Strain Relief
Pic 3 - Drilling out larger hole
Pic 4 - new strain relief installed with new 16 Guage 3 prong AC cord.
Pic 5 - New insulated spade clips crimped on to new AC cord and plugged into pellet stove wiring harnes. Note the old ground wire came out of stove between the ventilation slats in the back panel and attached to a screw that held the back panel on. This makes it very cumbersome to remove the panel and service the pellet stove. In this case a new round clip crimped onto the green ground wire is now grounded to the body of the stove with a stainless steel self tapping screw seperate from the back panel,
Pic 6 - Old strain relief. See tab that bites wire!
Also some stoves have the AC cord strain relief part of the back panel and can easily fall out. Drilling a hole in the back of the stove body and using the new strain relief can also make stove servicing easier.
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