Mertik Control System Troubleshooting Guide

1 Mertik Control System GAS FIRES & STOVEST roubleshooting Guide2 Troubleshooting GuideThis Troubleshooting Guide is supplementary to, and must be used in conjunction with, the Instructions for Use, Installation & Servicing supplied with the booklet provides a range of solutions to some of the problems that are experienced with Gas appliances. However, as each appliance and installation is different, it is not possible to provide solutions to every problem and a suitably competent person may be required to inspect the issue in the problem persists, please contact: Gazco Technical Customer ServicesEmail: Touchpad/ Wall Switch - Troubleshooting 1 ..page 32: Handset - Troubleshooting 2 ..page 43: Troubleshooting 3 ..page 54: Troubleshooting 4.

2 Page 65: Troubleshooting 5 ..page 76: Troubleshooting 6 ..page 87: Troubleshooting 7 ..page 98: Troubleshooting 8 ..page 109. Troubleshooting 9 ..page 11 Sales & General Enquiries: Gazco Ltd, Osprey Road, Sowton Industrial Estate, Exeter, Devon, England EX2 7JG E-mail: 1: Mertik - Touchpad/ Wall SwitchDOES THE APPLIANCE LIGHT FROM THE TOUCHPAD/ WALL SWITCH? Press ON button on Touchpad / Wall SwitchIs the Touchpad/ Wall Swtich connected properly?Ensure that all connections are correct and the pin and a connection pin bent?Does the appliance operate from the Touchpad/ Wall Switch? System OKSYSTEM OKSYSTEM OKSYSTEM OKYESR eplace the Touchpad/ Wall the Touchpad/ Wall Switch connection the appliance operate from the Touchpad/ Wall Switch?

3 Does the appliance operate from the Touchpad/ Wall Switch?YESNO4 Troubleshooting 2: Mertik - HandsetDOES THE APPLIANCE LIGHT FROM THE HANDSET? Press both buttons to start ignition (IGN) sequence. A beep will occur each secondNOYESP ossible Solution 1 Learn the new code (reset), see label on receiverPossible Solution 1 Check and replace the mains adapterPossible Solution 1 Straighten the antennaPossible Solution 2 Replace the ReceiverPossible Solution 1 Unplug or replace the Touchpad, Switch or cablePossible Solution 1 Replace ReceiverPossible Solution 1 Replace the AA batteries. It is essental to use high quality alkaline batteries (Duracell or equivalent)Possible Solution 1 Replace the 9V is essental to use high quality alkaline batteries (Duracell or equivalent)POSSIBLE PROBLEMT ransmitter batteries are lowPOSSIBLE PROBLEMR eceiver batteries lowPOSSIBLE PROBLEMO ptional main adapter is not operating properlyPOSSIBLE PROBLEMC heck the coding of the Transmitter and ReceiverPOSSIBLE PROBLEMT ransmitter distance limitedPOSSIBLE PROBLEMT ouchpad, Switch or cable not operating correctly(2006 versions only)POSSIBLE PROBLEMB lown fuse(in 2006 versions only) System OK5 Troubleshooting 3: Mertik Is the Magnet Unit energised?

4 Is there an audible thud to detect functionality?NO1 LONG BEEP3 SHORT BEEPSNO BEEPYESSYSTEM OKPossible Solution 1 Check cable connectionPossible Solution 1 Check 8-wire cablePossible Solution 1 Replace Gas ValvePossible Solution 1 Replace Gas ValvePossible Solution 1 Replace the AA batteries. It is essental to use high quality alkaline batteries (Duracell or equivalent)Possible Solution 1 Replace Gas ValvePossible Solution 1 Switch to ONPOSSIBLE PROBLEMOn/Off switch in OFF positionPOSSIBLE PROBLEM8-wire cable not operating properlyPOSSIBLE PROBLEMSW-cable diconnectedPOSSIBLE PROBLEMM otor not operating properlyPOSSIBLE PROBLEMM icro switch not operating correctlyPOSSIBLE PROBLEMLow batteriesPOSSIBLE PROBLEMI mpulse Magnet not operating properly6 Troubleshooting 4: MERTIKSPARK: Does a spark occur each second?

5 NOYESSYSTEM OKPossible Solution 1 Check connections between cable, IGN Electrode and Control BoxPossible Solution 1 Press reset buttonPossible Solution 1 Replace the AA batteries. It is essental to use high quality alkaline batteries (Duracell or equivalent)Possible Solution 2 Check IGN Electrode spark gapPossible Solution 2Do NOT coil the IGN cablePossible Solution 3 Check IGN ElectrodePossible Solution 3 Check IGN cable route. Increase the distance between IGN cable and all metal IGN cablePossible Solution 4 Check IGN cable for damagePossible Solution 5 Check IGN cable route. Increase the distance between IGN cable and all metal IGN cablePOSSIBLE PROBLEMI gnition components are not operating properlyPOSSIBLE PROBLEMIGN - sequence stops, no Pilot flame.

6 No reaction to Transmitter command. (Controller crashed)POSSIBLE PROBLEMIGN sequence stops, no pilot flame. Transmitter command is possible7 Troubleshooting 5: MERTIKIs the Pilot lit?NOYESSYSTEM OKPossible Solution 1 Check the connection of the cable to the Receiver and Interrupter (see Diagram 1)Possible Solution 1 Replace the Gas Valve or Magnet UnitPossible Solution 1 Check the conection to the Interrupter. Check mV between T1 and ground >4mVPossible Solution 1 Check gas supplyPOSSIBLE PROBLEMTC and SW cables reversedPOSSIBLE PROBLEMM agnet Unit not operating properlyPOSSIBLE PROBLEMS hort between the Interrupter and SW cablePOSSIBLE PROBLEMNo gas - Magnet Unit drops after 30 second audible countT1T2SW cableTC cableDiagram 18 Troubleshooting 6: MERTIKSPARKING: stops after Pilot is lit?

7 NOYESSYSTEM OKPossible Solution 1 Check connection to InterrupterPossible Solution 1 Replace the ReceiverPOSSIBLE PROBLEMS hort between the Interrupter and TC cablePOSSIBLE PROBLEME lectronic measuring amplifier defective9 Troubleshooting 7: MERTIKMOTOR: Motor turns to main gas and Pilot stays lit?NOYESSYSTEM OKPossible Solution 1 Check cable in Thermo-current circuit. Check mV between T1 and ground >4mVPossible Solution 1 Check position of Pilot to Thermocouple and intensity of Pilot flamePossible Solution 1 Replace Thermocouple. Do not over tighten (Hand tight +1/4 turn max)Possible Solution 1 Replace Thermocouple. Do not over tighten (Hand tight +1/4 turn max)Possible Solution 1 Press reset buttonPossible Solution 2 Add ground wire between Pilot burner and ValvePossible Solution 3Do not coil IGN cablePOSSIBLE PROBLEMR esistance in Thermo-current curcuit to highPOSSIBLE PROBLEMNot enough heat on ThermocouplePOSSIBLE PROBLEMLow voltage from ThermocouplePOSSIBLE PROBLEMS hort because Thermocouple end is damaged or not centredPOSSIBLE PROBLEMIGN sequence stops.

8 No reaction to Transmitter command T1T2SW cableTC cableDiagram 110 Troubleshooting 8: MERTIKMain Burner stays lit?Magnet Unit drops while motor turns (3 beeps)NOYESYESNOSYSTEM OKPossible Solution 1 Check installationPossible Solution 1 Replace the AA batteries. It is essental to use high quality alkaline batteries (Duracell or equivalent)POSSIBLE PROBLEMToo much draft at Pilot (poor flame impingement of Thermocouple)POSSIBLE PROBLEMLow batteries11 Troubleshooting 9: MERTIKS ystem can be switched off via electronicsSYSTEM OKSystem can be switched off via ON/ OFF switch?NOYESYESNOP ossible Solution 1 Check connection to Interrupter BlockPOSSIBLE PROBLEMS hort Interrupter between TC and SW cablePossible Solution 1 Replace Control BoxPossible Solution 2 Replace Gas Valve(Magnet Unit)Gazco Limited Osprey Road, Sowton Industrial Estate, Exeter, Devon, England EX2 7 JGEmail: All material copyright Gazco Ltd 2014 E & O EA member of the Stovax *PRPR2543*