Troubleshooting Guide

Luxier SP04-SS-D Rev. D 02201810

Troubleshooting

NOTE: To maintaine the performance of the shower panel. The thermostatic valve needs to be cleaned at least once a

year. More frequent cleaning is needed if water has high mineral content.

NOTE: Proper pressure must be maintained for the thermostatic valve to work properly. Make sure water pressue is about

the same on both hot and cold water side.

1. Water is Either Only Hot or Only Cold

Solution: If the newly installed shower panel fails to regulate temperature, the  rst step is to check the water supply hoses.

The thermostatic valve will not work if the hoses are installed backward. Contrary to common plumbing belief, it does

matter which side they are installed, as the valve has a hot side and a cold side. If the hoses were installed in reverse,

you should simply switch the hoses back. Also check for dirt or sediments in the check valves. Sometimes dirt can

inadvertently lodge in the check valve making it not to open therefore cutting o water  ow to the unit. The check valves

can be cleaned by cotton swabs. Make sure the check valves are free of dirt and operate as normal.

4. Low Water Pressure / Flow

Solution: Any restrictions in the water supply hoses will greatly reduce the performance of the shower panel. The  rst step

is to make sure both shut-o valves are fully open. Secondly, check the water supply hoses for kinks. Due to limited space

behind the shower panel, the hoses can get kinked very easily. Make sure the hoses are free of kinks when hanging the

shower panel on the wall. Lastly, make sure both check valves are working properly. A malfunctioned check valve can also

cause low water  ow to the thermostatic valve. The check valve should open when the center is pushed with tip of a pen

or a cotton swab. The check valve should close automatically when no external pressure is applied to the center part of

the valve.

2. Failure to Mix Hot and Cold water

Solution: The  rst thing to check is the water pressure at both inlets. The water pressure should be equal for both hot

and cold water side. The thermostatic valve will not work properly if there is a lack of water pressure due clog, damaged

shuto valve, or damaged check valve. The pressure issue will needs to be resolved before the valve can operate

properly. Unbalanced water pressure will make it harder to achieve desired water temperature. The water will be either too

hot or too cold.

3. Water Temperature is Either Too Hot or Too Cold

Solution: If proper water pressure is maintained but the panel is not able to maintain desired water temperature. The

thermostatic valve may also needs to be recalibrated. Please follow the calibration instruction in this installation guide.

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Troubleshooting NOTE: To maintaine the performance of the shower panel. The thermostatic valve needs to be cleaned at least once a year. More frequent cleaning is needed if water has high mineral content. NOTE: Proper pressure must be maintained for the thermostatic valve to work properly. Make sure water pressue is about the same on both hot and cold water side. 1.
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Cleaning The Thermostatic Valve Before You Begin • Read and understand this instruction completely before service the shower panel. • Make sure the water supply is shut off to the unit. If necessary, shut off the water to the entire house. • Turn on one of the faucets in the house to relieve the water pressure in the plumbing system. • Make sure the service site is clean and free of dust and debris. Parts Diagram Fig. C Fig. D 9 7 6 Fig. A 5 4 100 .4 3-1 3 Fig. E 8 2 Fig. B 1 1. Cap 2.
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Calibrating The Thermostatic Valve Before You Begin • Read and understand this instruction completely before service the shower panel. • Make sure the service site is clean and free of dust and debris. The valve may needs to be recalibrated after the valve was replaced or cleaned. The thermostatic valve is preset at 100.4 degree Fahrenheit when the safety pin is pointing at 12 o’clock position (Figure F) This is the starting point of the calibration.