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R<4.11Ω The heater is broken
R=0Ω The heater is broken
R>4.11Ω The module is aging.
The smaller R is the bigger power will be, it is better to replace the part.
2. Check if all SSR connections are tight:
3. If connections are loose, tighten them and make sure no cables drop off.
4. Measure the voltage at the SSR input.
SSR operation:
SSR SSR LED Heater V in
On/Off Blinking On Can't be
measured
Run heater test
Off Off Off 0V When heater test is not running
On On On 12V Heater test is running, D4.T value is large and stable
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