Installation - Error CodesINSTALLATIONError Code Prog Non-Prog HW10 WC lost link with hot water timer WC lost link with hot water timer WC lost link with hot water timer(Displayed on all relevant thermostats (Displayed on all relevant thermostats (Displayed on all relevant thermostatsand also hot water timer) and also hot water timer) and also hot water timer)11-18 WC lost link with zone Comm Connection link failure -11=Zone 1, 12=Zone 2 etc 11=Zone 1, 12=Zone 2 etcDisplayed on all Displayed on allconnected thermostats connected thermostats19 WC lost link with coordinator WC lost link with coordinator WC lost link with coordinator(Displayed on all connected (Displayed on all connected (Displayed on all connectedthermostats and hot water timer) thermostats and hot water timer) thermostats and hot water timer)20 WC lost link with receiver RX1 WC lost link with receiver RX1 WC lost link with receiver RX1(Displayed on all connected (Displayed on all connected (Displayed on all connectedthermostats and hot water timer) thermostats and hot water timer) thermostats and hot water timer)21 TRV lost link with coordinator TRV lost link with coordinator -(Displayed on all connected (Displayed on all connectedthermostats) thermostats)22 TRV low battery TRV low battery -(Displayed on all connected (Displayed on all connectedthermostats) thermostats)23 Invalid TRV Invalid TRV -24 Unit is rejected by wiring centre Unit is rejected by wiring centre -VS20WRF and VS20BRF Installer Manual 63