Brochure

Page 10
WARNING: For trouble shooting only. Make sure damper is in the open position. Use the service switch to keep the
damper in the open position. Place a jumper between 2 & 3. If the appliance fires, remove jumper & plug receptacle back
into damper controller plug. If appliance does not fire, replace damper motor assembly. Do not replace the pipe assembly.
If a damper motor assembly is not available, place the service switch in the hold open position. This should keep the
damper in the open position and allow the customer to have automatic heat. Return or replace the motor assembly at
your convenience. The motor assembly carries an 18 month limited commercial warranty from the original date of
manufacturing (Refer to form #4294 on website). Pipe assembly will not be warranted.
PROBLEM POSSIBLE CAUSE RECOMMENDED SOLUTION
NO POWER
Between 4&1
1. Off on limit (120VAC)
2. Bad Transformer.
3. Loose or broken connections.
4. Blown fuse or circuit breaker.
5. Disconnect switch off.
6. Harness not plugged into appliance
receptacle.
1. Turn limit on.
2. Replace transformer.
3. Tighten, repair or replace connection.
4. Replace fuse or reset circuit breaker.
5. Turn Switch on.
6. Plug harness in.
NO POWER
Between 4&2
POWER
Between 4&1
When Calling For Heat
1. Thermostat not calling for heat.
2. Burned out heat anticipator.
3. Loose or broken connections.
4. Off/On operating limit, pressure
control or low water cut off.
5. Off/On blocked vent switch or
flame roll out
1. Turn thermostat up to call for heat.
2. Replace thermostat
3. Tighten, repair or replace
connection.
4. Turn operating limit, pressure
control or lower water cut off on.
5. Reset or replace switch.
POWER
Between 4&1
Between 4&2
DAMPER OPEN
1. Loose or broken connection.
2. Defective damper motor.
1. Tighten, repair or replace
connection.
2. Replace damper motor assembly.