ERP High Limit Thermostat 00422272, 1105560, AP3697512, EAP8713233, PS8713233
ERP High Limit Thermostat 00422272, 1105560, AP3697512, EAP8713233, PS8713233
Clothes Dryer High Limit Thermostat
175 Degrees C, 347 Degrees F
Manual Reset
Replacement for numbers AP3697512, 1105560, 422272, AH3462929, EA3462929, PS3462929, and PS8713233
Fits the following models (not all applicable models may be listed):
Bosch Dryer High Limit Thermostat (Part #422272) – Symptoms, Troubleshooting & Installation
Symptoms of a Faulty High Limit Thermostat
A failing high limit thermostat (also called a safety thermostat or cutoff thermostat) can cause:
Dryer overheating (clothes extremely hot or burning smell)
Dryer shutting off mid-cycle (thermal cutoff activates)
No heat (if thermostat is stuck open)
Long drying times (if thermostat cycles heat inconsistently)
Troubleshooting the High Limit Thermostat
Tools Needed: Multimeter (ohms setting), screwdriver
Step 1: Unplug the Dryer
Always disconnect power before testing electrical components.
Step 2: Locate the High Limit Thermostat
Typically found near the heating element or vent duct in the dryer’s rear panel.
In Bosch dryers, it may be attached to the blower housing or heater housing.
Step 3: Test for Continuity
Disconnect the wires from the thermostat.
Set the multimeter to ohms (Ω).
Place probes on the thermostat terminals.
Normal (closed circuit): Should read 0–1 Ω (continuity).
Faulty (open circuit): No continuity (infinite resistance).
If faulty, replace it.
Step 4: Check for Blocked Venting
A clogged vent can cause overheating and trip the thermostat.
Inspect the exhaust vent for lint buildup.
Ensure proper airflow before replacing the thermostat.
Installation Instructions
Tools Needed: Screwdriver, needle-nose pliers
Step 1: Remove the Back Panel
Unplug the dryer.
Remove screws securing the rear panel and set it aside.
Step 2: Locate & Remove Old Thermostat
Find the high limit thermostat (usually near the heating element).
Disconnect the wires (take a picture for reference).
Remove mounting screws/clips holding the thermostat.
Step 3: Install New Thermostat (Part #422272)
Position the new thermostat in place.
Secure it with screws/clips.
Reconnect the wires (match the original configuration).
Step 4: Reassemble & Test
Reattach the back panel.
Plug in the dryer and run a heat cycle to verify proper operation.
Preventive Maintenance Tips
✔ Clean the lint filter after every load.
✔ Inspect and clean the exhaust vent annually.
✔ Avoid overloading the dryer.
| Brand: | ERP |
|---|---|
| Isin: | IAFOQ1GZAC55 |
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Clothes Dryer High Limit Thermostat
175 Degrees C, 347 Degrees F
Manual Reset
Replacement for numbers AP3697512, 1105560, 422272, AH3462929, EA3462929, PS3462929, and PS8713233
Fits the following models (not all applicable models may be listed):
Bosch Dryer High Limit Thermostat (Part #422272) – Symptoms, Troubleshooting & Installation
Symptoms of a Faulty High Limit Thermostat
A failing high limit thermostat (also called a safety thermostat or cutoff thermostat) can cause:
Dryer overheating (clothes extremely hot or burning smell)
Dryer shutting off mid-cycle (thermal cutoff activates)
No heat (if thermostat is stuck open)
Long drying times (if thermostat cycles heat inconsistently)
Troubleshooting the High Limit Thermostat
Tools Needed: Multimeter (ohms setting), screwdriver
Step 1: Unplug the Dryer
Always disconnect power before testing electrical components.
Step 2: Locate the High Limit Thermostat
Typically found near the heating element or vent duct in the dryer’s rear panel.
In Bosch dryers, it may be attached to the blower housing or heater housing.
Step 3: Test for Continuity
Disconnect the wires from the thermostat.
Set the multimeter to ohms (Ω).
Place probes on the thermostat terminals.
Normal (closed circuit): Should read 0–1 Ω (continuity).
Faulty (open circuit): No continuity (infinite resistance).
If faulty, replace it.
Step 4: Check for Blocked Venting
A clogged vent can cause overheating and trip the thermostat.
Inspect the exhaust vent for lint buildup.
Ensure proper airflow before replacing the thermostat.
Installation Instructions
Tools Needed: Screwdriver, needle-nose pliers
Step 1: Remove the Back Panel
Unplug the dryer.
Remove screws securing the rear panel and set it aside.
Step 2: Locate & Remove Old Thermostat
Find the high limit thermostat (usually near the heating element).
Disconnect the wires (take a picture for reference).
Remove mounting screws/clips holding the thermostat.
Step 3: Install New Thermostat (Part #422272)
Position the new thermostat in place.
Secure it with screws/clips.
Reconnect the wires (match the original configuration).
Step 4: Reassemble & Test
Reattach the back panel.
Plug in the dryer and run a heat cycle to verify proper operation.
Preventive Maintenance Tips
✔ Clean the lint filter after every load.
✔ Inspect and clean the exhaust vent annually.
✔ Avoid overloading the dryer.
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