diff --git a/README.md b/README.md
index 6214e22..82640e2 100644
--- a/README.md
+++ b/README.md
@@ -33,8 +33,23 @@ This ioBroker adapter receives data from a Nibe heat pump from Nibe Uplink.
 
 If you (later) get a "400 bad request" error in the log, you must get a new Auth Code - so do numbers 13 until 15 and 18.
 
+## Manage/Write Support
+
+It seems you can only change the parameters listet on the following web page:
+
+https://api.nibeuplink.com/docs/v1/Parameters (Settings section)
+
+The parameter "hot_water_boost" is parameter ID 48132.
+
+You can read other values but I think you can't write other values. Other values are here listed:
+
+https://github.com/sebilm/ioBroker.nibeuplink/blob/master/nibe-fetcher.js#L41
+
 ## Changelog
 
+### 1.0.1 - 2021-12-31
+* Fix write support #6
+
 ### 1.0.0 - 2021-12-30
 * Support to manage Nibe heat pump (write support #6)
   - You need to run the new version 30 minutes and then get a new AuthCode in the settings to use it!
diff --git a/io-package.json b/io-package.json
index dcff18c..5b61efc 100644
--- a/io-package.json
+++ b/io-package.json
@@ -1,8 +1,11 @@
 {
     "common": {
         "name": "nibeuplink",
-        "version": "1.0.0",
+        "version": "1.0.1",
         "news": {
+            "1.0.1": {
+                "en": "Fix write support #6"
+            },
             "1.0.0": {
                 "en": "Support to manage Nibe heat pump (write support #6)"
             },
diff --git a/main.js b/main.js
index a11c1cb..0af1f3c 100644
--- a/main.js
+++ b/main.js
@@ -414,9 +414,8 @@ class NibeUplink extends utils.Adapter {
                 this.log.debug(`state ${id} changed: ${state.val} (ack = ${state.ack})`);
                 let obj = await this.getObjectAsync(id);
                 if (obj && obj.native && obj.native.parameterId && obj.native.deviceUnit) {
-                    const val = obj.native.divideBy ? state.val * obj.native.divideBy : state.val;
                     let params = {};
-                    params[obj.native.parameterId] = val.toString();
+                    params[obj.native.parameterId] = state.val.toString();
                     try {
                         await this.fetcher.setParams(obj.native.deviceUnit, params);
                     }
diff --git a/package.json b/package.json
index 9fe27af..1c27ad2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "iobroker.nibeuplink",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "nibeuplink",
   "author": {
     "name": "Sebastian Haesselbarth",