Flammable Vapour Sensor Resistance

Smith promax after doing some investigating on my hot water tank it was revealed that the hot water tank had placed itself in a lockout due to detection of flammable vapors by the fvir sensor caused by the drying solvent based concrete floor sealant.

Flammable vapour sensor resistance.

One hack to get your hot water heater going in a pinch don t do this is to install a resistor in the circuit. I was able to test the resistance of my fvs using a multimeter and mine was somewhere around 196 000 kilo ohms. Rheem ap13447 3 water heater oem replacement flammable vapor sensor 4 5 out of 5 stars 62. This is fast easy and free.

A higher sensor resistance and vice versa. Checking a vapor sensor on ao smith water heaters. Most people don t have a 30 kohm resistor at home to use as a temporary fix. Unlike active sensors that typically utilize metal oxide or infrared technologies the 25vs does not require an external power source to detect flammable.

Clearly the fvs had simply gone bad. This sensor is designed to shut off your water heater system to prevent fires in case flammable vapors are present within the area. The sensor has a resistance of about 10 50 kohms when it has not been exposed to natural gas or splashed with water during cleaning. Only 7 left in stock order soon.

Unique benefits the therm o disc 25vs flammable vapor sensor yields several unique benefits when compared with other vapor sensing technologies. I describe how i permanently fixed a faulty flammable vapor sensor on a water heater. Certain rheem water gas water heater models feature electronic controls with a flammable vapor sensor installed on the bottom portion of the water heater unit. Mega amounts of resistance indicates a bad vapor sensor.

The proprietary conductive polymer sensing film expands in the presence of flammable vapors significantly changing sensor resistance. Elegoo 17 values 1 resistor kit assortment 0 ohm 1m ohm pack of 525 rohs compliant for electronic projects 4 7 out of 5 stars 660.