Problem – Build-up of ice under and around the outdoor unit
Cause Troubleshooting Remedy
Insufficient drainage.  Does a lot of ice accumulate under and 
around the outdoor unit because the melt-
ed water has no where to run?
Drain the ground under and around the 
outdoor section 
or
Install a drip tray with a drainpipe routed 
to an indoor drain or gully. NOTE! A heat-
ing cable may have to be installed in the 
drainpipe. 
Problem – Water run-off by the outdoor unit, risk of moisture problems in house foundations
Cause Troubleshooting Remedy
Insufficient drainage.  During some periods when the outdoor 
unit is being defrosted, large amounts (20-
40 L/day) of water can run off.
Drain the ground under and around the 
outdoor unit so that it can cope with the 
extra amount of water produced because of 
defrosting
or
Install a drip tray with a drainpipe routed 
to an indoor drain or gully. NOTE! A heat-
ing cable may have to be installed in the 
drainpipe.