Recommended
Before calling for service on your furnace it is a good idea to follow this simple troubleshooting chart. It can save you the cost of a service call!
| Problem | Possible cause | Solution |
| Furnace won't run |
1. No power. |
1. Check for blown fuses or tripped circuit breakers at main entrance panel, at separate entrance panel, and on or in furnace; restore circuit. |
| 2. Switch off. |
2. Turn on separate power switch on or near furnace. |
|
| 3. Motor overload. |
3. Wait 30 minutes; press reset button. Repeat if necessary. |
|
| Not enough heat |
1. Thermostat set too low. |
1. Raise thermostat setting 5°. |
| 2. Filter dirty. | 2. Clean or replace filter. | |
| 3. Blower clogged. | 3. Clean blower assembly. | |
| 4. Registers closed or blocked. |
4. Make sure all registers are open; make sure they are not blocked by rugs, drapes, or furniture. |
|
| 5. System out of balance. |
5. Balance system. |
|
| 6. Blower belt loose or broken. |
6. Adjust or replace belt. |
|
| 7. Element faulty. | 7. Call 518-701-8896 | |
| Furnace turns on and off repeatedly |
1. Filter dirty. 2. Motor and/or blower needs |
1. Clean or replace filter. 2. If motor and blower have oil ports, lubricate. |
| lubrication. |
||
| 3. Blower clogged. | 3. Clean blower assembly. | |
| Blower won't stop running |
1. Blower control set wrong. |
1. Reset thermostat from ON to AUTO. |
| 2. Relays faulty. | 2. Call 518-701-8896 | |
| Furnace noisy |
1. Access panels loose. |
1. Mount and fasten access panels correctly. |
| 2. Belts sticking, worn, or damaged. |
2. Spray squeaking belts with fan belt dressing; replace worn or damaged belts. |
|
| 3. Blower belt too loose or too tight. |
3. Adjust belt. |
|
| 4. Motor and/or blower needs lubrication. |
4. If motor and blower have oil ports, lubricate. |