Remarks:
1. In heating mode, if the water out temperature is higher than the set temperature over 7℃, controller displays EE04
for water over-heating protection.
2. In cooling mode, if the water out temperature is lower than the set temperature over 7℃, controller displays PP11
for water over-cooling protection.
EE04 Water Overheating Protection
PP11 Water Overcooling Protection
For example as below:
EE04 Overheating protection for
water temperature (T2)
PP11 Too low protection for
water temperature (T2)