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If the pilot lights but the main burner fails to kick in
the H43AA-12 and H43AA-12C are technically identical in form
For technicians troubleshooting furnace short cycling or 4-flash error codes on a Trane or American Standard air handler
this model is the official replacement for M9104-AGS-2N and is designed to integrate with existing Johnson Controls field controllers using the same footprint and wiring logic
Designed for direct compatibility with Weil McLain Ultra Gas Boilers and advanced control boards
ASCO 8215B50 Shut Off Valve Freon If the pilot lights butThe ASCO 8215B50 is a high performance 1" NPT gas solenoid valve engineered for precision and safety in low pressure fuel gas systems. This 2 way normally closed shut off valve is constructed with a rugged aluminum body and durable NBR seals, making it an ideal choice for commercial and industrial gas safety shut off applications. Operating at 120V AC, the ASCO RedHat series provides a high flow capacity (21 Cv) and is designed to handle media
US$ 196.50
US$ 295.50