CodeRegistry
Brands
  1. Home
  2. Mitsubishi Electric
  3. City Multi Air Conditioning Systems
  4. 2500 (PA)
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

2500 (PA)

2500 (PA) Water leakage

Mitsubishi Electric · City Multi Air Conditioning Systems

What does 2500 (PA) mean?

This error indicates that water leakage has been detected within the indoor unit. This is often caused by a blocked drain, a faulty drain pump, or a damaged drain pan.

Common Causes

  • Blocked condensate drain pipe.
  • Malfunction of the drain pump.
  • Cracked or overflowing drain pan.
  • Improper installation or leveling of the indoor unit.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the indoor unit at the circuit breaker immediately.

  2. 2

    Locate the indoor unit's drain pan and inspect it for any standing water or signs of overflow.

  3. 3

    Check the condensate drain pipe for any blockages, such as algae or debris, and attempt to clear it if accessible.

  4. 4

    Ensure the indoor unit is properly leveled to allow for effective drainage.

  5. 5

    If you cannot identify or resolve the source of the leak, contact a service professional to prevent further water damage.

Browse all codes in this manual (51)
Verified technical data. Last updated: April 2026

Related Faults

0403 (Ed)0403 (Ed) Serial communication error1102 <1202> (U2)1102 <1202> (U2) Compressor temperature trouble1302 <1402> (UE)1302 <1402> (UE) High pressure trouble
Source: Mitsubishi Electric City Multi Air Conditioning Systems
Open Manual (Page 19)Search more codes in this manual