Frequently Asked Questions - Tekmar 403 Installation & Operation Manual

Error Messages (3 of 3)
Error Message
Frequently Asked Questions (1 of 2)
Symptom Look For...
Fuse holder
LCD display is off
Power to control
DHW Call on LCD
DHW tank reading
Burner symbol on
LCD
No DHW tank
heating DHW pump symbol
on LCD
DHW pump in
operation
© 2011 D 403 - 07/11
MIX DEVICE LOST (1:01 TO 1:24)
®
Each tekmarNet device (thermostat, setpoint control, timer) has an address. The device with
this address on the mix water temperature is no longer reporting back to the 403.
The device can be located by either the address, or by going to each device in the building,
checking that the LCD is on, and the tekmarNet
from the control to the lost device looking for loose or damaged wires.
Note: If you deliberately remove a tekmarNet
this error.
MASTER DEVICE ERROR
More than one master has been detected on the tekmarNet
is a "Master Device" and no other tekmarNet
expansion terminals. If one has been added, remove it from the system.
DEVICE ERROR AT ADDRESS b:01 to b:24
Each tekmarNet ® device (thermostat, setpoint control, timer) has an address. One of the
devices on the boiler water temperature has an error. If there is a record of the device
address together with the room name, go to that device to correct the error. Otherwise, go
to each device in the building, checking for the flashing Warning symbol. Once the error on
the device is corrected, the error message will clear.
DEVICE ERROR AT ADDRESS 1:01 to 1:24
®
Each tekmarNet device (thermostat, setpoint control, timer) has an address. One of the
devices on the mix water temperature has an error. If there is a record of the device address
together with the room name, go to that device to correct the error. Otherwise, go to each
device in the building, checking for the flashing Warning symbol. Once the error on the device
is corrected, the error message will clear.
MIX MODULE ERROR
A Mixing Module has been connected to the Mix Exp. tN4 terminals. The 403 controls mixing
devices through outputs on the control and cannot operate tekmarNet
modules. Remove the device and connect the mixing actuator or pump directly to the appropriate
output terminals on the 403.
Corrective Action
Control power supply has a 24 V (ac) fuse which if blown, requires
replacement.
Use electrical meter to measure 24 V (ac) voltage on input power R and C
terminals.
If a DHW call is present, the control is aware that the DHW tank requires heat.
Ensure the DHW tank temperature is accurate and replace if necessary.
If the burner symbol is on the LCD, there is a problem with the boiler. Ensure
the boiler aquastat manual limit is reset to the on position.
If the DHW pump symbol is on, check to ensure the DHW pump is in operation
by checking for pump vibration or voltage on the pump wiring terminals.
If DHW pump and boiler are operating, the system may require the boiler system
pump to operate to heat the DHW tank. Ensure the DHW Mode setting is set
correctly.
Description
® communication symbol is on. Trace the wires
® device, hold the Up and Down buttons to clear
®
reset controls can be added to the tekmarNet
30 of 32
® 4 expansion terminals. The 403
® mixing expansion
®
4