① water pressure is insufficient, can not be in the radiator normal thermal cycle

(Solution: 1. to find the property, increase the water pressure 2. Since the installation of circulating pump)

② radiator in the obstruction, hinder water circulation

(To find a local dealer, with special equipment testing, removal of obstacles)

③ into the next out, the branch pipe copper pipe embedded in the main part of the exhaust valve beyond the mouth.

(1. return to the factory repair 2. to find a dealer with special equipment to reduce the copper branch pipe height)