Problem Solving

These are common problems not covered by the warranty:

Problem Solving:

1. Unit Not heating up
2. Circuit breaker Tripping
3. Earth Leakage Tripping
4. Unit not getting hot enough
5. Unit stopped/stops heating up
6. Damaged Element
7. Unit is leaking
8. Unit seems to be sparking

1. Unit not heating up

   This can include both new and old installation.
   - circuit breaker is off
   - Isolator switch is off
   - Wrong size cable. Make sure cable size is correct, as stipulated on each unit.
   - Plugged into wall socket/ needs to go direct to D.B board
   - Cable over 30m long / if longer then 30m increase cable size
   - Element is damaged / check element - refer to point 6) Damaged Element.
   - Wrong size circuit breaker – refer to point 2) Circuit breaker tripping
   - Not enough current to Unit.
   * Make sure Circuit breaker has its own independent feed from the Earth Leakage, with a 4mm Cable.
   - Cable is faulty

2. Circuit Breaker Tripping

   Make sure that each Water Heating Unit has its own independent Isolator switch of the right size as stipulated on each unit
   - Circuit breaker wrong size – check recommend size on unit
   - Wrong size cable to unit – Check recommended size on unit
   - Wrong size cable to Circuit Breaker – Make sure it has its own independent feed
   - Using RCCB or GFCI type circuit breakers, these are to sensitive
   - Element is damaged / check element - refer to point 6) Damaged Element.
   - Cable is faulty – Check cable and connections
   - Faulty electrical connections

3. Earth Leakage Tripping

   - Wrong size cable. Make sure cable size is correct, as stipulated on each unit.
   - Cable is faulty – Check cable and connections
   - Faulty electrical connections
   - Old/Damaged Earth Leakage
   - Check earth supply from council – strengthen earth supply

4. Unit not getting hot enough

   Lorenzetti Electric Water heating units work on low water flow. Normal conventional showers use around 15 liters per minute, Lorenzetti range from around 4-8 liters a minute. As it is instant hot water the unit does need some time to heat the water up, so the faster the water travels through the unit the colder the water and slower the water passes through the unit the hotter the water. All units come standard with little water flow reducers, and these need to be installed unless water flow/pressure is very low. For the versatile under counter and the personal hygiene hand shower a pressure reducing valve of 200kpa needs to be installed
   - Wrong size cable. Make sure cable size is correct, as stipulated on each unit.
   - Element is damaged / check element - refer to point 6) Damaged Element.
   - Cable over 30m long / if longer then 30m increase cable size
   - Plugged into wall socket/ needs to go direct to D.B board
   - Water flow to high – reduce water flow – check water flow reducer is installed
   - Water inlet cold – on average the units heats water between 15-20 degrees hotter then water entering the unit, so when water temp is low water flow needs to be reduced to increase water temperature.

5. Unit Stopped/Stops heating up

   This could be over a period of time or whilst the shower is running.
   - Wrong size cable. Make sure cable size is correct, as stipulated on each unit.
   - Element is damaged / check element - refer to point 6) Damaged Element.
   - Faulty electrical connections
   - Electrical wire is damaged

6. Damaged Element

   there is a couple of ways that a element is damaged.
   - Air is the number one problem in damaging elements. Make sure that the unit is in the off position and check to make sure that water is running through the unit, MAKE SURE ALL AIR POCKETS ARE OUT THE PIPE. Only then can the unit be turned to desired temperature and water turned on. If the main water supply feeding the unit has been disturbed and/or turned off, via burst pipe or on main road and/or on property, make sure that the unit is turned off and that all air locks have been removed before switching unit on.
   - Water with a high calcium and potassium count also known as hard water will shorten the life of a element. Cleaning elements regularly with white vinegar will prolong element life. In most cases a damaged and/or Blown element will not damage the unit. Element can just be replaced.

7. Unit is leaking

   Shower Units:
   Unit is leaking where arm and shower meet:
   - Not enough PTFE tape used. Arm/Shower is cracked and leaking:
   - unit was over tightened
   - To much PTFE tape was used. Shower head is leaking were it connects to the shower after it has been opened:
   - O ring is damaged
   - Sealing grease was not used
   - Head not attached properly

   Versatile under counter and Personal Hygiene:

   Unit is leaking from the back
   - Unit not attached to connection nipple properly
   - Not enough PTFE tap is used
   - O ring damaged or installed wrong

   Unit is leaking from bottom of the unit
   - Unit not attached to connection nipple properly
   - Pressure exceed 200kpa – 200KPA pressure valve needs to be installed (if leaking due to pressure, the unit will need to be replaced)
   - Element not installed properly

   Personal Hygiene, hose is leaking were it connects to the Unit/Hand shower:
   - washer is damaged or not installed

   Hand shower is leaking
   - Water spreader not on properly
   - O ring on spreader damaged

8. Unit seems to be sparking:

   Unit seems to be sparking when water temperature is changed,
   On the analog units, the water switches the units on. The water pushes on a diaphragm which is connected to electrical connections that are connected to the element, so when the water pushes on the diaphragm the diaphragm then makes contact with the electrical contacts and so giving power to the element. So the spark sometimes seen is the live connections making contact. This will over time damage the contacts but by no means will it cause electrical shock or damage.
   - Water must be switched off before changing temperatures