Initial investigation conducted by the Energy Commission found that the water heater storage unit at the Avillion Port Dickson was faulty. (pix by ADZLAN SIDEK)

SEREMBAN: Initial investigation conducted by the Energy Commission found that the water heater storage unit at the Avillion Port Dickson was faulty.

On Tuesday, in a 4am incident, the faulty water heater unit had exploded, causing a portion of the hotel’s roof to collapse.

The explosion brought down ceiling panels and joining walls across several rooms, injuring three hotel guests.

In a statement today, the commission said it was undertaking further inspection to determine the cause of damage to the water heater system.

The commission also stated that the hotel has been ordered to stop using the water heater system until a full inspection is completed.

“Normally, the water heater systems are equipped with safety features to avoid excessive pressure which can cause explosions,” the statement read.

The commission also advised those using the storage-type water heater system to conduct inspections at least once every six months.

When purchasing such a system, the commission pointed out that consumers should look for a Sirim certification, the water heater should be equipped with a pressure relief valve (PRV), the PRV should be replaced every five year by authorised personnel, and that it should be fitted with isolation barrier at the water inlet and outlet.

A full guide to the water heater system can be found at the Energy Commission website at www.st.gov.my.

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