11416 - USEErr 108 Internal software error Replace the power control boardErr 109 Internal software error Replace the power control boardErr 110 Flapper valve not open error a) Check for any obstruction into the exhaust systemb) Check if the fan is runningc) Check the flapper valve and its control sensor (SeeFigure 3-2 items 32 and 33)a) Remove the obstruction from flue exhaustb) Replace the fan or the power control boardc) Replace the flapper valve or its control sensor (See Figure 3-2 items32 and 33)Err 111 Flapper valve not closed error Check the flapper valve and its control sensor (See Figure3-2 items 32 and 33)Replace the flapper valve or its control sensor (See Figure 3-2 items 32and 33)Err 112 Internal software error Replace the power control boardErr 113 Internal software error Replace the power control boardErr 114 Too low water flow a - Check water flow into the system (parameter 1062), itmust be higher than parameter 3035.a - Increase the water flow into the systemb - Check for any obstruction into the water systemErr 115 Multiple burner master failure Reset via 3013 parameterErr 116 Multiple burner communicationfailurea - Bus communication interrupteda - burner is not workinga - check for the bus communicationb - repristinate the burner that is light off.16.18 - Flue blockedpressure switchThis appliance is equipped with a safetyflue blocked pressure switch (see Figures3-3 through 3-8, item “24”) that shut-offthe unit when the flue exhaust vent pipe isblocked. If this pressure switch shuts offthe unit (Loc 2, Loc 5 or Loc 25), do notattempt to place the heater in operationbut contact a qualified service agency thatwill reset the unit after checking for anypotential dangerous situation.WARNING!!!WARNING!!! If the safetyflue blocked pressure switch shutsoff the system do not attemptto reset or repair the unit. It ismandatory to contact a Qualifiedservice agency. Failure to complywith this requirement can resultin excessive levels of carbonmonoxide which can cause severepersonal injury or death!16.19 - Shuts heaterdown1. Follow “To Turn Off Gas toAppliance” on page 3 of thismanual.2. Do not drain the system unlessexposure to freezing temperatureswill occur.3. Do not drain the system if it is filledwith an antifreeze solution.16.20 - How toclean the appliancejacketTo clean the appliance jacket, use onlya soft cloth dampened with water. Donot use aggressive or abrasive agents.
