To Next PageTo Next PageWhat to do if my Dettson C45-1-D Furnace has low flame sense current?
Low flame sense current in your Dettson Furnace is often due to carbon deposits on the flame sensor, a poorly grounded furnace, or a misaligned flame sense probe. Clean carbon deposits with emery cloth. Improve the furnace and module ground. Ensure the sensor is located in or very near the flame, as specified by the manufacturer.
What to do if my Dettson Furnace limit switch is open due to possible blower failure?
If the limit switch is open in your Dettson Furnace, it may be due to possible blower failure or restricted airflow. Verify continuity through the limit switch circuit and correct the cause of overheating.
What to do if my Dettson Furnace has flame sensed when no flame should be present?
If your Dettson Furnace is sensing a flame when there should be no flame, verify the gas valve is operating and shutting down properly. The flame in the burner assembly should extinguish promptly at the end of the cycle. Also, check orifices and gas pressure. Check items for exceeded retries and verify the valve is not dropping out, allowing a flame to be established and then lost.
What to do if my Dettson C45-1-D has grounding or reversed polarity?
If you suspect grounding issues or reversed polarity in your Dettson Furnace, verify that the control and furnace are properly grounded. Check and reverse polarity (primary) if it's incorrect.
What to do if my Dettson Furnace has open rollout or open fuse detect?
If your Dettson Furnace shows an open rollout or detects an open fuse, verify continuity through the rollout switch circuit and check the fuse.
What to do if my Dettson Furnace has external lockout due to exceeded ignition recycles?
If your Dettson Furnace experiences external lockout because ignition recycles have been exceeded (where flame is established and then lost), check for exceeded retries. Verify the valve is not dropping out, which allows the flame to be established and then lost.
What to do if my Dettson Furnace 1st-stage pressure switch cycle lockout?
If your Dettson Furnace is experiencing a 1st-stage pressure switch cycle lockout, check the pressure switch for fluttering, inconsistent closure, or poor vacuum pressure.
What to do if my Dettson C45-1-D has pressure switch stuck closed or inducer error?
If your Dettson Furnace indicates a pressure switch stuck closed or an inducer error, check the switch function and verify that the inducer is turning off.
What to do if my Dettson C45-1-D 2nd-stage Pressure Switch is Stuck Open or has an Inducer Error?
If your Dettson Furnace displays a 2nd-stage Pressure Switch Stuck Open error or an Inducer Error, check the pressure switch function and tubing. Verify that the inducer is turning on and pulling sufficient vacuum to engage the switch.
What to do if my Dettson Furnace 1st-stage pressure switch is stuck open or inducer error?
If your Dettson Furnace shows a 1st-stage pressure switch stuck open or an inducer error, check the pressure switch function and tubing. Verify that the inducer is turning on and pulling sufficient vacuum to engage the switch.
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