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The following table describes what is displayed inside the Error log:
Error Log content
Description
First line
- Boiler ID (for which boiler the error was detected – cascade system only)
- Error code (internal)
- Error number
- Error type (lockout/blocking)
Second line
- Error description
Bottom line
- Time Stamp (date and time) when the error was detected (in the format configured in the Date & Time settings menu)
- The selected error index from the total numbers of errors in the (filtered) error log
5.6 Service reminder
The Service reminder will remind the owner/user of the appliance to service the appliance every 2000 burn
hours. When service is not done within this time, a message will be shown on the screen: "Service is required!",
alternating with the normal status display.
NOTE: with the message "Service is required" the boiler keeps running , but maintenance must be done before
resetting this message.
When the Service reminder has become active, the time it takes before service is actually done is being logged
(in hours). This time is called the Service Overdue Time.
The Service reminder can be reset by the installer who services the appliance.
Service status information can be viewed: Menu/ Information/ Service:
(Sub) Menu item
Service history
Burn hours since last service
Burn hours till service
Reset service reminder
5.7 System test
For testing the system at fixed power rates a system test can be activated via the menu. Via the system test the
boiler can be started without CH or DHW being present. The system test has priority.
The following modes are available:
System test mode
0
(Not active)
1
(Fan only)
2
(Low power)
3
(Ignition power)
4
(High power)
5
(High power limited)
6
(High limit error test)
7
(Low Water Cut Off 1 error test)
8
(Low Water Cut Off 2 error test)
Before running the system test modes first check if the heat can also be dissipated. Note that during this mode the
supply temperature can be raised above 203 ºF (95 ºC). When this temperature is reached the burner will switch OFF.
When the supply temperature cools down to 194 ºF (90 ºC) the burner will start again.
During the system test the general and CH pump will be ON.
As the boiler will run at fixed power rates there is no setpoint control active.
Also the flame recovery is not active during system test demand. All other safety functions remain active.
The system test automatically stops after 10 minutes, after this the system continues with normal demand handling.
When the system test mode is changed during an active system test, the 10 minute timer is reloaded.
Description
View the Service history (log). For each service moment the Service overdue counter is stored. When the
overdue counter is 0 hrs, it means service was done before the Service reminder was active. The log is ordered
so the most recent service moment is shown first (on top of the list).
Shows the number of burn hours since the last service moment.
Shows the number of burn hours until service is required.
Reset the Service reminder (and store Service overdue counter in the service history).
Installer must enter the installer password first before it can be reset.
Description
System test mode not active
The fan is forced to run at maximum speed without starting the burner
The burner starts and after the ignition period has finished
the burner stays at low power
The burner starts and stays at ignition power
The burner starts and after the ignition period has finished
the burner stays at high power
The burner starts and after the ignition period has finished
the burner stays at high power limited by the CH max. power parameter
Simulates the Max_Temp_Error
Simulates the LWCO_1_ Error
Simulates the LWCO_2_ Error
E95.1601EN032 VGH-CH user manual
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