HA-P046 thermistor inlet/outlet temp. sensor set for Eemax HA018240, HA024240, HA027240 HomeAdvantage/ProAdvantage
MAKE SURE YOUR THERMISTOR TIPS (plug connectors) EXACTLY MATCH as shown in the two product photos above! NO RETURNS ON THIS ITEM. You may call Eemax tech support for assistance at (800) 543-6163.
Also for the ProAdvantage PR018240, PR024240, PR027240.
NOT for the HA036240 or PR036240.
Thermistors Troubleshooting Steps
Turn off breaker.
Locate temperature sensors on inlet and outlet pipes. It is the nut with wires coming out of it.
Follow cable to electronic board.
Remove electronic board cover.
Disconnect from board.
Turn on breakers.
Turn on hot water tap.
Wait 3 to 5 minutes.
If water still does not heat up, further technical troubleshooting is needed. Volt meter is required.
If the water heats up, then the thermistors are bad. Just leave them disconnected (creating a bypass) until you can replace the thermistors.
Eemax tankless water heater technical overview
The HA018240 is the medium sized model and carries (2) heating elements and exchangers using (2) 9 kW @ 240 Volts.
The HA024240, HA027240 and HA036240 have the largest-sized form factor and they each use three heating elements and exchangers. The HA024240 uses three 8 kW elements operating at 240 Volts. The HA027240 uses three 9 kW elements running at 240 Volts. The HA036240 uses four 9 kW elements running at 240 Volts.
|1. Electrical Conduit Connection|
|2. Flow Sensor Assembly|
|3. Ground Connector|
|4. Terminal Block|
|5. Triac Cooling Plate|
|7. Temperature Control Setting Knob|
|8. Inlet Temperature Sensor (thermistor)|
|9. Electronic Board and Protector|
|10. Fuse and Fuse Holder|
|11. Copper Heating Elements|
|13. Mounting Bracket|
|14. Back Casing|
|15. Copper Heat Exchanger|
|16. Outlet Temperature Sensor (thermistor)|
|17. Hot Water Outlet Connection|
|18. Cold Water Inlet Connection|