Rank: Member
Groups: Registered
Joined: 7/9/2010(UTC)
Posts: 1
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My dryer blows cold air . I made sure that the vent was clean ,I checked continuity with the fuse, which is good. The dryer is spinning and the timer is working. To add to info, 2 days ago i cleaned the blower and vent duct from lent, it wasn't an excessive amount of lint and it started blowing hot air, now 2 days later it's blowing cold air again, also I must add it is coin-op. i am interested in replacing all pats that would be related with in reason to make it a onetime blanket event since I have everything apart, to avoid having to open her back up to change another part.
Thank You!
Charles
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Rank: Advanced Member
Groups: Senior Expert, Administrators
Joined: 7/19/2007(UTC)
Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
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Hi Charles, There are five major electrical parts involved in the heating process: 1. Thermal fuse
2. Cycling thermostat
3. Igniter
4. Flame sensor
5. Gas valve coils How to find out which part causing the problem? Pretty simple: all of these parts have to be tested for continuity in the above sequence. If any of them is open – it has to be replaced. If the thermal fuse is blown – it has to be replaced together with the cycling thermostat. Gas valve coils also could be tested by resistance. There are two coils – one with three terminals and one with two terminals.
1. Coil with two terminals should have 1220 ± 50 Ohms
2. Coil with three terminals if held with terminals in upper position:
a) across the left and the middle terminals – 1365 ± 25 Ohms
b) across the left and the right terminals – 560 ± 25 Ohms |
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