Daikin RWEYQ8PY1 Operation Manual

Also see for VRV-WIII RWEYQ10PY1: Installation manual

Contents

12 English*2 The inside of the indoor unit needs to bewashed. Specialized techniques are requiredfor cleaning the unit, so contact your dealer.*3 This valve controls the amount of gas flow(refrigerant) through indoor unit.10. TROUBLE SHOOTINGIf one of the following malfunctions occur, takethe measures shown below and contact yourDaikin dealer.WARNINGStop operation and shut off the power if any-thing unusual occurs (burning smells, etc.)Leaving the unit running under such circum-stances may cause breakage, electrical shock, orfire.Contact your dealer.• If a safety device such as a fuse, a breaker or anearth leakage breaker frequently actuates;Measure : Do not turn on the main power switch.• If the ON/OFF switch does not properly work;Measure: Turn off the main power switch.• If water leaks from the unit;Measure: Stop the operation.• If the display “ ”, the unit number and theoperation lamp flash and the malfunction codeappears; (Refer to figure 12)1. Inspection display2. Indoor unit number in which a malfunctionoccurs3. Operation lamp4. Malfunction codeMeasure: Notify your Daikin dealer and report themalfunction code.If the system shuts down due to an error, thebackup operation function may allow the unit tocontinue running for several hours after it isstarted back up, but if this happens, be sure tocontact your dealer.If the system does not properly operate except forthe above mentioned cases and none of theabove mentioned malfunctions is evident, inves-tigate the system according to the following pro-cedures.If it is impossible to fix the problem yourself afterchecking all the above items, contact your dealer.Let him know the symptoms, system name, andmodel name (listed on the warranty card).1.If the system does not operate at all;• Check if there is no power failure.Wait until power is restored. If power failureoccurs during operation, the system automaticallyrestarts immediately after the power supply isrecovered.• Check if no fuse has blown.Turn off the power supply.• Check if the breaker isdown.Turn the power on withthe breaker switch in theoff position.Do not turn the power onwith the breaker switch in the trip position.(Contact your dealer.)2. If the system stops soon after starting the opera-tion;• Check if air inlet or outlet of indoor unit is notblocked by obstacles.Remove any obstacle and make it well-ventilated.• Check if the remote controller display shows“ ” (time to clean the air filter);Refer to the operation manual of the indoor unit.And clean the air filter.• Check if all the valves in the water piping system.Open all the valves in the water piping system.• Check if a strainer is choked.Clean a strainer.• Check if a heat source water is circulating.Inspect the water system.• Check if the inlet temperature of the heat sourcewater is within its range.Do not exceed its range.• Check if the water quantity of the heat sourcewater is within its range.Do not exceed its range.3. The system operates but cooling or heating isinsufficient;• Check if air inlet or outlet of indoor unit is notblocked by obstacles.Remove any obstacle and make it well-ventilated.• Check if the remote controller display shows“ ” (time to clean the air filter);Refer to the operation manual of the indoor unit.And clean the air filter.• Check the temperature setting.Refer to “Operation procedure”.• Check the fan speed setting on your remote con-troller.Refer to “Operation procedure”.• Check if the air flow angle is not proper.Refer to “Operation procedure”.• Check for open doors or windows.Shut doors and windows to prevent wind fromcoming in.• Check if direct sunlight enters the room duringcooling operation.Use curtains or blinds.• Check if there are too many occupants in theroom during cooling operation.TESTSwitchONOFFTrip positionBreaker