Mitsubishi · Mini-split
P5 High condensate level
What this code means
Same underlying issue as P4 — the condensate pump isn't keeping up or the drain is blocked, and water level has risen further.
Most likely causes
- Clogged condensate drain line
- Failed condensate pump
What to try first
Same fix as P4: check and clear the drain line before assuming pump failure.
Good news: this one is often fixable without a service call. If it persists after the steps above, have it looked at.
FAQ
What does Mitsubishi error code P5 mean?
High condensate level. Same underlying issue as P4 — the condensate pump isn't keeping up or the drain is blocked, and water level has risen further.
Can I fix Mitsubishi code P5 myself?
Often, yes. Same fix as P4: check and clear the drain line before assuming pump failure.
What causes Mitsubishi code P5?
The most common causes are: clogged condensate drain line; failed condensate pump.
Other Mitsubishi mini-split codes
All Mitsubishi mini-split error codes →
Other mini-split brands: Daikin · LG · Fujitsu · Gree · Carrier · Generic · Panasonic
This information may contain errors or not apply to your exact model — always double-check it against your appliance's own manual before acting. If there's any chance of a gas, fire, electrical, carbon monoxide, or other safety hazard, stop and call a licensed professional or the appropriate agency (e.g. your gas utility) instead of relying on this page alone.