Bosch Dryer Temperature Not Right — Sensor, Heat Pump & Cycle Diagnosis
Temperature issues on Bosch compact dryers manifest as clothes too hot (overheating), clothes cold/barely warm (no heat), or inconsistent temperature during the cycle. Each points to different components in the heat regulation chain.
Expected Bosch Dryer Temperatures
- WTW heat pump: Maximum 65C air, clothes exit at 40–50C (warm, not hot)
- WGA condenser: Maximum 72C air, clothes exit at 50–60C (moderately hot)
- Delicate/Low cycles: 50C max on both types
Do You Have the Right Tools?
Gas leak detector ($130), thermal fuse tester ($95), belt tension gauge, and vent inspection camera ($180). Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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Causes by Symptom
Too Cold
- Clogged condenser → reduced heat exchange → clean it
- Compressor not running (WTW) → E:04 → professional repair
- Heating element burned (WGA) → test continuity → replace
- NTC reading high → board thinks oven is too hot → cuts heat prematurely → replace sensor
Too Hot
- NTC reading low → board thinks temp is lower → over-heats → replace sensor
- Clogged condenser → hot air recirculates → thermal cutout should trip
- Failed thermostat → heating unchecked → replace thermostat
- Stuck relay (WGA) → element continuous → board replacement
Inconsistent
- Intermittent NTC sensor → erratic readings → replace sensor ($15–$35)
- Door seal leak → hot air escapes intermittently → check seal
- Compressor starting/stopping abnormally → refrigerant low → professional
Most Common Fix
Clean the condenser (free) and replace suspect NTC sensor ($15–$35). These two components account for 60% of temperature complaints on Bosch compact dryers.
Safety First — Know the Risks
Gas dryers carry carbon monoxide and explosion risk. Even electric dryers involve 240V circuits that can deliver a fatal shock. Our techs are licensed and insured — let them handle the risk.
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Step-by-Step
- Determine: too hot, too cold, or inconsistent?
- Clean condenser — affects both hot and cold symptoms.
- Check for error codes (E:03, E:04).
- Test NTC sensors — 10–20 kohm at room temperature.
- Feel clothes at cycle end — compare to expected for your model type.
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DIY Fix vs Professional Repair
| Issue | DIY? | Parts Cost | Professional Cost |
|---|---|---|---|
| Clogged condenser | Yes | $0 | $89–$150 |
| NTC sensor | Easy-Moderate | $15–$35 | $120–$200 |
| Thermostat | Moderate | $15–$35 | $120–$200 |
| Compressor (WTW) | Professional | $300–$600 | $500–$900 |
| Heating element (WGA) | Moderate | $50–$100 | $150–$280 |
| Control board | Moderate | $150–$350 | $280–$500 |
The Real Cost of DIY
Average DIY attempt: $150-400 in tools you may use once, plus the risk of further damage. Our diagnostic visit costs $0 — we find the problem and give you an honest quote.
Licensed & Insured · 90-Day Warranty · Same-Day Service
FAQ
Q: My Bosch dryer runs different temperatures on different loads. Normal?
AutoDry adjusts cycle characteristics based on moisture readings, which can create perception of temperature variation. However, if the same cycle with same load type gives different exit temperatures, an NTC sensor may be intermittent.
Bosch dryer temperature problems? Our technicians test all thermal components for accurate diagnosis. Schedule a repair →
