Installing a new defrost sensor often resolves this

Standard induced draft blower replacements typically require a fresh seal to the collector box

How do I install the 5059-134 when replacing a 5059-23 with a spade connector

Reliable performance under heavy load conditions

Laars Heating Systems RS2112801 Burner Door 321702-401 Installing a new defrost sensorThe Laars RS2112801 Burner Door with Gasket is a critical OEM replacement component designed to maintain the integrity of the combustion chamber in Laars NeoTherm (NTH) Boilers. Engineered for high efficiency hydronic heating systems, this assembly ensures an airtight seal between the burner and the heat exchanger. This model is specifically compatible with a wide range of NeoTherm units, including the NTH 150, NTH 210, NTH 285, NTH 399, NTH 500, and