Utica-Dunkirk 43800013 Hot Surface Ignitor
A replacement hot surface ignitor used in specified Utica 90% condensing boilers to ignite the burner during a call for heat.
Key Features:
- Replacement hot surface igniter kit intended to replace a defective hot surface igniter
- Kit contents (as listed by the manufacturer):
- Hot Surface Igniter (1)
- Hot Surface Igniter Gasket (1)
- Installation Instructions (1)
- Manufacturer notes there are two different igniters used in the 90% condensing boiler line that may look similar but have different insertion depths, so the correct igniter must be used for the correct boiler model
- Manufacturer bulletin indicates the replacement igniter kit part number remains 43800013 even across igniter design changes for the UB90-100 series
Compatibility & Applications:
- Manufacturer installation instructions identify P/N 43800013 for 50/75/100 BTUH 90% condensing boiler models (manufacturer designation)
- Must only be used where the manufacturer specifies this exact part number: 43800013
Installation & Operation Notes:
- Installation should be performed by trained/qualified personnel; the manufacturer states installing and servicing heating equipment can be hazardous due to gas and electrical components
- Follow the boiler's service/installation documentation and the igniter kit instructions, including key manufacturer safety/setup notes:
- Turn off electrical power to the unit (more than one disconnect may be required) and set the thermostat to the lowest setting or "OFF"
- Turn off gas at the external shut-off; on 50/75/100 BTUH models, turn the electric switch on the gas valve to "OFF" (manufacturer notes larger models may not have a gas valve switch)
- Wear gloves as sheet metal edges may be sharp (cut hazard)
- The igniter is extremely fragile; failure to support the burner assembly can damage the igniter
- Use the included new igniter gasket
- Pay special attention to orientation: the igniter mounting bracket is stamped "outside," and the word "outside" should be readable when fully seated; if not readable, the igniter is not oriented correctly and must be removed and reinstalled correctly
- Manufacturer system check-out steps include observing the ignition sequence, verifying smooth ignition and a clear blue flame, and checking for air leakage around the igniter/mixer area
Maintenance & Troubleshooting:
- This part is typically replaced when the boiler has ignition problems traced to a defective hot surface igniter (manufacturer usage description).
- Manufacturer troubleshooting guidance highlights conditions that can contribute to igniter-related reliability issues and should be checked during system checkout, including:
- Short cycling / defective thermostat conditions (example causes listed by manufacturer)
- Under-firing / low input (verify firing rate per rating plate guidance)
- High return water temperature (verify proper flow for the installed radiation components)
- Incorrect venting (verify venting and ensure intake/exhaust terminations are properly installed and not reversed)
- Manufacturer cautions that severe air leaks (including around clean-out panels on older models) can affect pressure switch operation and lead to no ignition or erratic burner operation
User Reviews & Q&A Summary:
- Reviews commonly describe it as the correct replacement part used to restore heat when the existing ignitor was failing.
- Installation feedback frequently emphasizes handling the ignitor carefully and following the included directions due to the part's fragility.
- Many comments focus on purchasing experience (availability, shipping speed, and customer support), with some noting that confirming the correct part number/model match was important before ordering.