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Thorm Em
Gas Water Heater

Model # EM1-PM1000 Official Thorm Em tankless water heater

Here are the diagrams and repair parts for Official Thorm Em EM1-PM1000 tankless water heater, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 39 parts  |
Thermocouple 239-37326-00
#13

Replacement parts diagram

Thermocouple

Part #239-37326-00

The manufacturer no longer makes this part, and there's no substitute part

Electrode 239-37318-00
#15

Replacement parts diagram

Electrode

Part #239-37318-00

The manufacturer no longer makes this part, and there's no substitute part

O-ring 239-37355-00
#26

Replacement parts diagram

O-ring

Part #239-37355-00

The manufacturer no longer makes this part, and there's no substitute part

Drfthd Assy 239-37374-00
#2

Replacement parts diagram

Drfthd assy

Part #239-37374-00

The manufacturer no longer makes this part, and there's no substitute part

Sensing Bulb 239-37323-00
#22

Replacement parts diagram

Sensing bulb

Part #239-37323-00

The manufacturer no longer makes this part, and there's no substitute part

Housing Assembly 239-37320-00
#18

Replacement parts diagram

Housing assembly

Part #239-37320-00

The manufacturer no longer makes this part, and there's no substitute part

Buter Case PM-12
#8

Replacement parts diagram

Buter case

Part #PM-12

The manufacturer no longer makes this part, and there's no substitute part

Chassis Assembly 239-37382-00
#1

Replacement parts diagram

Chassis assembly

Part #239-37382-00

The manufacturer no longer makes this part, and there's no substitute part

Sensing Tube 239-37331-00
#24

Replacement parts diagram

Sensing tube

Part #239-37331-00

The manufacturer no longer makes this part, and there's no substitute part

Sensing Tube 239-37332-00
#25

Replacement parts diagram

Sensing tube

Part #239-37332-00

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your water heaters

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Why isn't my water heater heating my water?

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

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Why isn't my water heater making the water hot enough?

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

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Why is there water in my water heater's drain pan?

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

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Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

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Why isn't my water heater making enough hot water?

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

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Why is my water heater making the water too hot?

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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Why is my water heater's pressure relief valve dripping water?

Main causes: faulty pressure relief valve, water is overheating…

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Effective articles & videos to help repair your water heaters

Use the advice and tips in these articles and videos to get the most out of your water heater.

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

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Using a wiring schematic to trace a current video

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