For Heating, Cooling and Plumbing Troubleshooting, use these suggestions from H.B. McClure. In an emergency call 232-4328 for immediate HVAC service.
Heat Pump: No Heat
Check your breaker for a tripped breaker or blown circuit.
Heat Pump: Insufficient Heat
(Heat pump is running but air is not warm)
Check your air filter. A clogged filter will reduce system efficiency. Replace filter. Call 232-4328 (HEAT) to schedule service or preventive maintenance appointment.
 Unit is covered in ice. Replace air filter. Call 232-4328 (HEAT) to schedule service or preventive maintenance appointment.
Check thermostat. If thermostat is set properly (make sure it is set to "Heat") and the heat does not come on if you decrease the temperature setting, you may have a thermostat malfunction. Call 232-4328 (HEAT) to schedule a formal diagnosis and repair.
Check room registers to ensure that they are open.
Central Air: No Air
Check your breaker for a tripped breaker or blown circuit.
Check thermostat to make sure it is set to cool. Set thermostat to below current temperature to turn unit on. If no results, call 232-4328 (HEAT) to schedule an emergency service appointment.
Check for power by moving the fan switch from "auto" to "on". If the blower runs, there is power. If nothing happens, a control is burned out or power is disconnected. If the system uses a furnace for heat, check that the emergency switch is on. If you are familiar with the fuse or circuit breaker panel, check for blown fuses or tripped breakers. Correct the problem one time only. If it repeats, call for service.
If the unit is in the attic, there could be a float switch in the air handler or in the safety pan that will shut the condenser off if the drain is clogged. Water around the unit is evidence of trouble. Call for service.
Central Air: Inadequate Cooling
(System is running, but air is not cooling the house)
If your system squeals upon start up or rattles while running, check exterior fittings and then call 232-4328 (HEAT) to schedule a service appointment.
Gas Furnace Produces No Heat
Thermostat may be set too low. Make sure thermostat is in heat mode. Reduce temperature to see if unit comes on. If not, thermostat may be broken. Call H.B. McClure to schedule a furnace repair appointment.
Circuit breaker or fuse may be tripped or blown. Check and reset.
Natural gas or propane control valve is closed.
Pilot light is out. Relight pilot light.
Gas Furnace Does Not Produce Enough Heat
Check air filter. If dirty, replace. Call H.B. McClure to schedule a preventive maintenance appointment to avoid future problems.
Burners may be dirty or need adjustment. Call H.B. McClure to schedule a service technician appointment.
Boiler Produces No Heat
Check the circuit breaker to see if a fuse is tripped or blown. Reset or replace as necessary.
Natural gas or propane control valve to boiler burner is closed.
Pilot light is out. Relight standing pilot.
Check that thermostat is in heat mode and has an appropriate temperature setting. If reducing the temperature does not initiate the unit to start, call 232-4328 (HEAT) to schedule an emergency no-heat appointment.
**These are suggestions from H.B. McClure only. H.B. McClure is not responsible for any equipment or personal damage that may occur as a result of these troubleshooting suggestions.
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