Filter
Top Products
55
G. Both drive motor and blower (impellor/fan) motor (for Reversing Models ONLY) are not
operating (do not start) and indicator light is on...
1. Fault at L1 or L2 termination(s) between the terminal block and contactors (relays).
2. Failed contactors (both blower [impellor/fan] and drive).
3. Failed motors (both blower [impellor/fan] and drive).
H. Heating unit is not operating (no heat)...no voltage at heating unit...
1. Fault in sail switch circuit ...
a. Sail switch is out of adjustment or has failed.
b. Sail switch damper is not closing or is fluttering ...
1) Lint screen is dirty.
2) Restriction in the exhaust.
3) No exhaust air flow ...
a) Failed impellor (fan/blower).
b) Fault in blower (impellor/fan).
2. Tripped burner manual reset hi-limit.
3. Tripped lint chamber sensor bracket basket (tumbler) manual reset hi-limit switch.
I. No heat operating (no heat)...no voltage at heating unit...
1. Fault in Hot Surface Ignition (HSI) system ...
a. Hot Surface Ignitor glows but no ignition and HSI (Hot Surface Ignition) module "LOCKS-OUT"
("red" L.E.D. [light emitting diode] indicator flashes) ...
1) Flame probe assembly out of adjustment.
2) Severe air turbulence.
3) Failed HSI module.
4) Failed gas valve.
b. Hot Surface Ignitor glows, but burner goes off right away ...
1) Flame probe assembly is out of adjustment or has failed.
2) Sail switch is fluttering.