Why is my Reznor Heater delivering cold air on start-up?
If your Reznor Heater is delivering cold air on start-up or during operation, here are some possible reasons: * The fan control might be improperly wired: Connect it as per the wiring diagram. * The fan control could be defective: Replace the fan control. * The manifold pressure might be incorrect: Check the manifold line pressure.
What to do if the motor will not run on my Reznor BE?
If the motor on your Reznor Heater will not run, here are some things to check: * **Circuit open**: Check the wiring and connections. * **Fan control inoperative**: Replace the fan control. * **Defective motor or capacitor**: Replace the motor or capacitor.
Why is there no heat when my Reznor Heater is operating?
If your Reznor Heater is not producing heat while operating, consider the following: * Check the manifold pressure to ensure it is correct, and verify the orifices are correct. * Cycling on limit control: Check air throughput. * Improper thermostat location or adjustment: See the thermostat manufacturer's instructions.
How to troubleshoot a Reznor Heater venter motor that will not start?
If the venter motor on your Reznor Heater won't start, here are a few things to check: * **No power to unit**: Turn on the power and check the supply fuses or circuit breaker. * **No 24-volt power to venter relay**: Turn up the thermostat and check the control transformer output. * **Defective venter relay**: Replace the relay. * **Defective motor or capacitor**: Replace the motor or capacitor.
What to do if pilot lights, but main valve will not open on Reznor BE Heater (Spark Ignition system)?
If the pilot light ignites but the main valve won't open on your Reznor Heater (spark ignition system), consider these potential issues: * Ensure the manual valve is fully open. * If you measure 24 volts at the valve connections and the valve remains closed, replace the valve. Also, check and tighten all wiring connections. * Check and tighten all wiring connections. Ensure the flame sensor lead is not grounded and that the insulation or ceramic is not cracked. Verify that the supply pressure is within the range of 5-14" w.c. for natural gas or 10-14" w.c. for propane gas. Replace the sensor if the ceramic is cracked. If all checks indicate no other cause, replace the ignition controller.
Why does the motor turn on and off while the burner is operating on my Reznor Heater?
If the motor on your Reznor Heater turns on and off while the burner is operating, the following could be the cause: * The fan control may be improperly wired: Connect it according to the wiring diagram. * The fan control may be defective: Replace the fan control. * There might be poor contact between the fan control and the heat exchanger tube: Check for bent mounting or loose mounting screws. * The motor overload device may be cycling on and off: Check the motor load against the motor rating plate and replace the motor if needed. * The ambient temperature may be low (less than 40°F), causing false cycling: Install a fan delay relay kit.
Why does the fan motor cut out on overload in my Reznor Heater?
If the fan motor in your Reznor Heater cuts out on overload, here are a few things to investigate: * **Low or high voltage supply**: Correct the electrical supply. * **Defective motor**: Replace the motor. * **Poor air flow**: Clean the motor, fan, and fan guard. * **Defective bearing or lubrication**: Lubricate the bearings or replace the motor.
What to do if the pilot will not light on my Reznor Heater (spark ignition system)?
If the pilot light on your Reznor Heater won't ignite with the spark ignition system, there are several potential causes: * The manual valve may not be open: Ensure the manual valve is fully open. * There might be air in the gas line: Bleed the gas line to remove any trapped air. * The pilot orifice could be blocked: Carefully remove and clean it with compressed air or solvent (do not ream). * The gas pressure might be incorrect: Verify that the supply pressure is within the range of 5-14" w.c. for natural gas or 10-14" w.c. for propane gas. * The pilot tubing could be kinked: Replace the tubing if it's kinked. * The pilot valve might not be opening: If 24 volts are present at the valve, replace it. * There might be no spark: Check all wire connections to ensure they are sec...
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